help, ppsspp(android) doesnt recognize any iso.

[andresfgp13]

hello, i have a tablet (android)and a problem who is making me mad.
i installed the app in my tablet and dumped from my psp the mortal kombat unchained iso and works well, but i tried with other ones i have doing the same method and the app say things like "a psp game coulnt be found"and things like that.
and other ones works well when i pass them to my tablet, i turn off the tablet, and turn on and when i go to the app the app doesnt recognize any of the isos/cso that already worked before.

pls any help will be apreciated, in getting mad because of this.

(i dont speak english very well, sorry).